Hi. I am Shruti. Born in India. Studied to be an Architect. Started my practice. Took a break. Got married. Started practice again. Took a break. Had a lovely kid - Aadi. Started job. Took a break. Learnt to quilt. And now nothing breaks except my thread...

Rethread and clean out the shuttle.She also changed to a better thread. I had the same issues and found that a better thread was the answer. I read somewhere that tension issues are usually not change the tension but change the needle or the thread first.

Of the choices you listed (2) switching to better threadis the best choice as you didn't list what she wrote that she does 90% of the time.She said that "nine times out of ten I can fix it(tension problems) by re-threading the machine or cleaning out the shuttle." For "actual quilting" switching to better thread (Aurifil) has helped her tremendously.